When the gospel says Jesus spoke with authority it meant He spoke in power. They mean the same thing. Its not the same kind of authority/power in the natural. Where you get a boss who is a meanie or is strict. This kind oozes love. Its wrong for mininsters of the gospel to behave like the world's leaders who rule people and not lead them. Sheep is not bullied around, it ls lead with tenderness. Well, i understand that sons/soldiers need discipline/chastisement, that's another realm of revelation.
Nonetheless, when we appear, let people see the King in us. God is Spirit, His authority is in His Spirit, not in man's carnality/natural realm.